Kangguer gold polymetallic deposit with associated copper,lead,zinc and silver,lying south of the Tu Ha basin in the eastern Tianshan Mountains,occur in the gigantic Qiugemintashi Huangshan ductile compressional belt.

Aimed at Jetta steering knuckle,the technology of two forging steps in one heat was presented,which combined precision pre-forging by extrusion-belt obliterated extrusion with open finish-forging.

Aiming at the obliterated extrusion forming with extrusion-belt of pre-forging part,the influences of punch geometry,extrusion-belt length,mould temperature and lubrication to forming technology were discussed by using DEFORM,then the technology parameters used in the forming were acquired.

In this paper, a new precision forming technology is put forward, which combines pre-forging by separable cavity die extrusion-belt type obliterated extrusion with post-forging.

Study on microstructures and mechanical properties of 7055 alloy extruded plate in longitudinal and transverse direction;

The effects of single aging,duplex aging and conditions between the first and second step agings on the microstructures and properties of the extruded plate of 7050 aluminium alloy were investigated,by means of TEM,tensile and conductivity tests.

The properties of 6A51 extruded strip pnxluced according to the parameteis meet the requisition.

Experimental research on compressive ductility of polymer concrete;